I think that bolting it in is the way to go but we are going to weld for extra strength and the Andereggen swap is for 47.5 to 55 1st series trucks because of different measurements. Here are some pictures of the truck I took in order to help me put it back together correctly.

Thank you for your opinions and advice

1957 Chevy 3800 Panel Truck - "Nightmare"
(Nightmare to restore)
Will give nightmares to the Fathers of my girlfriends.
"I'm in artillery!" Thank you, Bob. Can we play anything for you? "Anything! Just play it loud, OK?!"